National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

23°F

-5°C

Humidity 92%
Wind Speed N 3 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 4 Dec 12:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 32. Wind chill values between 25 and 30. Calm wind becoming west around 6 mph.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Mostly Sunny
    then
    Decreasing
    Clouds and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 14. Wind chill values between 5 and 10. Blustery, with a northwest wind 19 to 24 mph decreasing to 9 to 14 mph after midnight.

    Low: 14 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 34. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming south in the afternoon.

    High: 34 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 24. South wind around 6 mph becoming northeast after midnight.

    Low: 24 °F

    Chance Light
    Snow

  • Saturday

    Saturday: A 30 percent chance of light rain before 10am. Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance Light
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 32. Wind chill values between 25 and 30. Calm wind becoming west around 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 14. Wind chill values between 5 and 10. Blustery, with a northwest wind 19 to 24 mph decreasing to 9 to 14 mph after midnight.
Friday
Increasing clouds, with a high near 34. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming south in the afternoon.
Friday Night
A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 24. South wind around 6 mph becoming northeast after midnight.
Saturday
A 30 percent chance of light rain before 10am. Mostly cloudy, with a high near 42.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 29.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
1:13 am EST Dec 4, 2025
Forecast Valid:
1am EST Dec 4, 2025-6pm EST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation